[Sheapdog]

I’m pretty sure the US has been selling the Mexican military in the range of 20,000 guns and weapons yearly for many years. That these are then dispersed in a corrupt organization shouldn’t surprise anyone. Whatever Holder and the ATF does is small potatoes in comparison to business as usual for decades.

[USNBandit]

He never had live grenades while he was under surveillance. The stuff he had is not illegal in the United States. The only time it is illegal is when it's crossing the border," Special Agent Peter Forcelli said. "They were just parts, they weren't whole grenades."

So if you have him under surveillance, why not pass of the case to ICE or CBP who can do a warrantless outbound inspection?